Ryan Donato would be a decent addition for the top 6 this summer, especially moreso with the Bruins not having a left wing prospect that looks ready to compete in the NHL anytime soon. Still under 30, he's put in the work to improve his skating in recent years and he's among the top of the league in high danger area goals. He's also more durable than Ehlers, who's probably going to get big UFA money.